1/2 cup chopped walnuts optional
1 cup semi-sweet chocolate chips
1 tsp. salt
1 tsp. baking soda
2 1/2 cups all-purpose flour
1 tsp. vanilla
1/2 cup buttermilk
1 1/2 cups very ripe bananas mashed, approx. 3-4 medium
2 large eggs
1/2 cup unsalted butter
1 1/4 cups granulated sugar